Liquid container

Abstract

A liquid container capable of containing a liquid has a flow passage that is formed in the liquid container and through which the liquid flows, and a filter 166 provided in the middle of the flow passage. The filter 166 inclines in a direction with respect to the horizontal direction.

What is claimed is: 
     
       1. A liquid container containing a liquid comprising:
 a flow passage that is formed in the liquid container and through which the liquid flows; 
 a flow passage opening that is in communication with the flow passage; and 
 a filter provided in the middle of the flow passage, 
 wherein the filter inclines in a direction with respect to a horizontal direction, 
 wherein the filter is disposed at a position lower than a position of the flow passage opening, so that an air bubble caught by the filter moves upward into the flow passage opening. 
 
     
     
       2. The liquid container according to  claim 1 ,
 wherein the filter inclines such that an end portion of the filter that is located on an upstream side of the liquid passing through the filter is located vertically above an end portion of the filter that is located on a downstream side of the liquid. 
 
     
     
       3. The liquid container according to  claim 1 ,
 further comprising a plurality of liquid containing chambers each containing a liquid, 
 wherein the filter is provided in a filter chamber, and 
 the filter chamber is in communication with a liquid containing chamber located at the highest position in a vertical direction, among the plurality of liquid containing chambers. 
 
     
     
       4. The liquid container according to  claim 3 ,
 wherein the liquid containing chamber that is in communication with the filter chamber is provided with a rib that inclines with respect to the horizontal direction. 
 
     
     
       5. The liquid container according to  claim 3 ,
 wherein a vertically upper face of the liquid containing chamber that is in communication with the filter chamber is provided with an air intake that is capable of taking, into the liquid containing chamber, the air coming from the outside of the liquid container. 
 
     
     
       6. The liquid container according to  claim 5 ,
 wherein the liquid containing chamber that is in communication with the filter chamber is provided with the flow passage opening that guides out, to the liquid containing chamber, an air bubble coming from the filter chamber, and 
 the flow passage opening and the air intake are arranged at positions that overlap each other as seen in a plan view from the vertical direction. 
 
     
     
       7. The liquid container according to  claim 3 ,
 wherein the flow passage inclines so as to be located vertically above further on a downstream side of the filter chamber. 
 
     
     
       8. The liquid container according to  claim 1 ,
 further comprising a float portion that floats with a change of a remaining amount of the liquid contained in the liquid container, 
 wherein the filter inclines such that an end portion of the filter that is located on the side of the float portion is located vertically below an end portion of the filter that is located on a side opposite to the float portion. 
 
     
     
       9. The liquid container according to  claim 1 ,
 wherein the filter is arranged such that the liquid passes therethrough from below to above in the vertical direction.